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Authentication and Authorization are critical components of every online application, especially those created using the MERN stack (MongoDB, Express.js, React, Node.js). They aid in ensuring that only authorized users have access to specified resources or may execute specific activities within the program. To know more, check the MERN Stack Training in Noida.
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AUTHENTICATION AND AUTHORIZATION IN MERN STACK APPLICATIONS Add a little bit of body text
Authentication and Authorization in MERN Stack Applications Authentication and Authorization are critical components of every online application, especially those created using the MERN stack (MongoDB, Express.js, React, Node.js). They aid in ensuring that only authorized users have access to specified resources or may execute specific activities within the program. To know more, check the MERN Stack Training in Noida.
Implementation of Authentication and Authorization in MERN Stack Applications • The overview of the implementation of Authentication and Authorization in MERN Stack Applications has been listed below for reference:
Authentication • Authentication can be referred to as the process of verification of the identity of a user. In a MERN Stack Application, different authentication mechanisms like username/password-based authentication or social media authentication can be put to use. The most common approach is to use JSON web tokens (JWT) for authentication.
As soon as the user logs in with his valid login credentials, the concerned server is known to generate a JWT which contains a unique identifier for the user and signs it with a secret code. • Following this, the server sends the JWT code back to the user which securely stores it in a local storage or cookie. • The client adds the JWT to the request headers for subsequent requests to secured routes. • Next, the server is given the task of verifying the authenticity as well as the validity of the JWT by evaluating the expiration date and signatures. • If the JWT is proven to be valid, the user is held to be authenticated by the server and is then allowed access to the source asked for.
Authorization • Authorization is a process of defining what the user can and cannot do within a given application once authenticated. It includes the definition of roles, permissions, and access levels for different resources or routes.
